EGNOS Performance at System CDR

S. Lannelongue, JC. Levy, X. Derambure, H. Delfour, D. Flament and JM. Pieplu

Abstract:	The EGNOS system is being developed in Europe to provide GPS and GLONASS regional augmentation services to aviation, maritime and land users. EGNOS is a major element of the European Satellite Navigation Program, which is jointly being implemented by the Commission of the European Union, the European Space Agency and EUROCONTROL. The EGNOS system, as any other Wide Area Augmentation System, relies on the broadcast of correction and integrity information in the pseudo-range domain, which are then used to provide a solution in the position domain service. The objective of this paper is to give a summary of major results achieved in the field of EGNOS System performances for system CDR. It contains the main outcomes of the analysis performed for this critical milestone together with a brief description of the methodology, for the driving system performances which are: ! The Accuracy ! The Integrity ! The Continuity ! And the Availability – Service Area System performances as estimated with representative and validated tools are totally in line with the commitment announced at EGNOS PDR. Furthermore, the assessment of Integrity and Continuity performances have been refined in details. This has allowed to demonstrate that EGNOS Detailed Design is meeting stringent requirement even considering conservative approaches and under Worst Ionospheric Conditions defined by a group of European experts.
Published in:	Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002) September 24 - 27, 2002 Oregon Convention Center Portland, OR
Pages:	1727 - 1735
Cite this article:	Lannelongue, S., Levy, JC., Derambure, X., Delfour, H., Flament, D., Pieplu, JM., "EGNOS Performance at System CDR," Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002), Portland, OR, September 2002, pp. 1727-1735.
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